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122620331 = 3726312601
BaseRepresentation
bin1110100111100…
…00100110101011
322112201202110202
413103300212223
5222342322311
620100102415
73016153451
oct723604653
9275652422
10122620331
1163241519
1235094a0b
131c533812
14123dc9d1
15ab71e3b
hex74f09ab

122620331 has 8 divisors (see below), whose sum is σ = 126423264. Its totient is φ = 118843200.

The previous prime is 122620327. The next prime is 122620361. The reversal of 122620331 is 133026221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122620331 - 22 = 122620327 is a prime.

It is a super-2 number, since 2×1226203312 = 30071491149099122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122620301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3431 + ... + 16031.

It is an arithmetic number, because the mean of its divisors is an integer number (15802908).

Almost surely, 2122620331 is an apocalyptic number.

122620331 is a deficient number, since it is larger than the sum of its proper divisors (3802933).

122620331 is a wasteful number, since it uses less digits than its factorization.

122620331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12901.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 122620331 is about 11073.4064767803. The cubic root of 122620331 is about 496.8067578233.

Adding to 122620331 its reverse (133026221), we get a palindrome (255646552).

The spelling of 122620331 in words is "one hundred twenty-two million, six hundred twenty thousand, three hundred thirty-one".

Divisors: 1 37 263 9731 12601 466237 3314063 122620331